Thermal enhancement in Cu–TiO₂/water hybrid nanofluid over a rotating stretching surface: Numerical and ANN approaches

Analysis about heat transfer enhancement in water flow over 3D rotating surface with addition of hybridized nanoparticles is the prime goal of this work. Hydrothermal features of phenomenon are observed by accounting novel physical factors like, magnetic field, radiative thermal flux, Hall current and activation energy. This study in comprehensive manner with respect to configuration and included parametric variables contains potential utilization in numerous engineering systems, for instance, solar collectors, heat exchangers, electronic cooling systems, refrigeration systems, and enhanced oil recovery, heat transferring and cooling applications. By employing scaling parameters, the modelled equations are reduced into ordinary differential setup and then solved numerically by using bvp4c approach. Afterwards, Levenberg Marquardt propagated approach is used to validate numerical data by performing training on computed numerical values for quantities of interest against different parameters. Outcomes in graphical and tabular manner are attained in comparative manner for mono and hybrid composition of nanoparticles. Validation of results in agreement with existing studies is also presented to ensure credibility of work. It is deduced that the primary of the velocity profile drops but the secondary of the velocity profile shows the opposite behavior, as the rotational ( λ ) , Hall current ( m ) and magnetic parameter ( M ) increments. Upsurge in the radiation parameter ( Rd ) , rotational parameter ( λ ) , and magnetic parameter ( M ) of HNFs increase, increases the rate of heat transfer. 113.07% increase in the transfer rate of heat is found for hybrid nanoparticles induction in comparison to mono nano structure composition for situation when (S) is varied from 0.2 to 0.8.